Finding the Third Proportional to 1,306,644 and 1,959,978

Step by Step Solution

1. Step 1: Write the proportion equation
   1,306,644 : 1,959,978 = 1,959,978 : x
2. Step 2: Convert to fraction form
   1,306,644/1,959,978 = 1,959,978/x
3. Step 3: Cross multiply
   1,306,644x = 1,959,978 × 1,959,978
4. Step 4: Simplify right side
   1,306,644x = 3,841,513,760,484
5. Step 5: Solve for x
   x = 3,841,513,760,484/1,306,644
6. Step 6: Final answer
   x = 2,939,985.00